Watch List notes:

Indonesia - Kingdom of Srivijaya - Palembang, c. 680-1250 - AV 'cross kupang', ¼ mas or kupang (0.59 g.). Unknown period, found from Musi river at Palembang. Only circulated in Sumatra (Palembang) since the type has never been found elsewhere. Ref.: Ronachai Krisadaolarn, The Evolution of Thai Money, from its Origins in Ancient Kingdoms (2016), #A703 - XF - rare